﻿// Copyright (c) 2012 Mokah Nnamezie & Andrew Cooper
// Neo4Net graph database - http://neo4net.codeplex.com
//
// This file is part of Neo4Net - a .Net port of the Neo4j graph database
//
// Neo4Net is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

namespace Neo4Net.Kernel.Impl.Cache
{
    using System;
    using System.IO;
    using Neo4Net.GraphDb.Factory;
    using NUnit.Framework;

    [TestFixture]
    public class TestCacheTypes : AbstractNeo4NetTestCase
    {
        private static readonly String path = GetStorePath("cache-db");

        [TestFixtureSetUp]
        public static void Clear()
        {
            DeleteFileOrDirectory(new DirectoryInfo(path));
        }

        private IGraphDatabaseAPI NewDb(string cacheType)
        {
            return (IGraphDatabaseAPI)new GraphDatabaseFactory().NewEmbeddedDatabaseBuilder(path).SetConfig(GraphDatabaseSettings.CacheType.Name, cacheType).NewGraphDatabase();
        }

        [Test]
        public void TestDefaultCache()
        {
            IGraphDatabaseAPI db = NewDb(null);
            Assert.That(db.NodeManager.CacheType.Name, Is.EqualTo(SoftCacheProvider.Name));
            db.Shutdown();
        }

        [Test]
        public void TestWeakRefCache()
        {
            IGraphDatabaseAPI db = NewDb(WeakCacheProvider.Name);
            Assert.That(db.NodeManager.CacheType.Name, Is.EqualTo(WeakCacheProvider.Name));
            db.Shutdown();
        }

        [Test]
        public void TestSoftRefCache()
        {
            IGraphDatabaseAPI db = NewDb(SoftCacheProvider.Name);
            Assert.That(db.NodeManager.CacheType.Name, Is.EqualTo(SoftCacheProvider.Name));
            db.Shutdown();
        }

        [Test]
        public void TestNoCache()
        {
            IGraphDatabaseAPI db = NewDb(NoCacheProvider.Name);
            Assert.That(db.NodeManager.CacheType.Name, Is.EqualTo(NoCacheProvider.Name));
            db.Shutdown();
        }

        [Test]
        public void TestStrongCache()
        {
            IGraphDatabaseAPI db = NewDb(StrongCacheProvider.Name);
            Assert.That(db.NodeManager.CacheType.Name, Is.EqualTo(StrongCacheProvider.Name));
            db.Shutdown();
        }

        [Test]
        public void TestInvalidCache()
        {
            // invalid cache type should fail
            Assert.That(NewDb("whatever"), Throws.Exception);
        }
    }
}
